An iperf3 security update has been released for Debian GNU/Linux 10 LTS to address a memory allocation issue.

[SECURITY] [DLA 3506-1] iperf3 security update

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Debian LTS Advisory DLA-3506-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Markus Koschany
July 25, 2023 https://wiki.debian.org/LTS
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Package : iperf3
Version : 3.6-2+deb10u1
CVE ID : CVE-2023-38403
Debian Bug : 1040830

A memory allocation issue was found in iperf3, the Internet Protocol
bandwidth measuring tool, that may cause a denial of service when
encountering a certain invalid length value in TCP packets.

For Debian 10 buster, this problem has been fixed in version
3.6-2+deb10u1.

We recommend that you upgrade your iperf3 packages.

For the detailed security status of iperf3 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/iperf3

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS